Hammock frame



FIG. 1 is a perspective view of a hammock frame showing my new designthereof;

FIG. 2 is a right side elevational view;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front side elevational view;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view; and,

FIG. 7 is a perspective view, the broken lines are for environmentalpurposes only and form no part of the claimed design.

The ornamental design for a “hammock frame”, as shown and described.